Is it weird for girls to like younger guys?

Im 16 and the oldest guy I've ever dated was 12 days older than me, I've dated people at lest half a year to a year younger than me and find myself more attracted to guys younger than me, some people find it weird because im almost 17 and my boyfriend is 15. is it weird or just normal (i know if i was like 25 it wouldn't really matter)